A Single Phase Voltage Regulator Module (VRM) With Stepping Inductance for Fast Transient Response
A Single Phase Voltage Regulator Module (VRM) With Stepping Inductance for Fast Transient Response
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DOI：
10.1109/tpel.2006.889909
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发表时间：
2007-03
影响因子：
6.7
通讯作者：
D. Lu;J.C.P. Liu;F. Poon;B. Pong
中科院分区：
文献类型：
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作者：
D. Lu;J.C.P. Liu;F. Poon;B. Pong
提出了一种带步进电感的单相快速暂态变流器拓扑结构。步进电感法是用两个串联的电感代替降压式变流器中的传统电感来实现的。一种电感大，另一种电感小。在暂态负载变化过程中，电感较小的电感会取代输出电感，提高动态响应速度。在稳定状态下，大电感接管并保持基本上很小的纹波电流，并最大限度地降低均方根损耗。这是一种适用于带输出电感的变流器的低成本方法。一个1.5V DC-DC降压转换器的硬件样机在100A的暂态负载变化下进行了实验，以验证该方法的优点。它还用作电压调节模块，并为现代PC计算机系统供电
A single-phase fast transient converter topology with stepping inductance is proposed. The stepping inductance method is implemented by replacing the conventional inductor in a buck converter by two inductors connecting in series. One has large inductance and the other has small inductance. The inductor with small inductance will take over the output inductor during transient load change and speed up dynamic response. In steady state, the large inductance takes over and keeps a substantially small ripple current and minimizes root mean square loss. It is a low cost method applicable to converters with an output inductor. A hardware prototype of a 1.5-V dc-dc buck converter put under a 100-A transient load change has been experimented upon to demonstrate the merit of this approach. It also serves as a voltage regulator module and powers up a modern PC computer system